Ariga T, Ando S, Takahashi A, Miyatake T. Gangliosides and neutral glycolipids of human adrenal medulla.
BIOCHIMICA ET BIOPHYSICA ACTA 1980;
618:480-5. [PMID:
7397210]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Glycolipids were isolated from human adrenal medulla by DEAE-Sephadex A-25 and Iatrobeads column chromatography. The lipid-bound sialic acid was about 234 microgram/g fresh tissue. The glanglioside fraction contained two major gangliosides which accounted for 93% of the total lipid-bound sialic acid. They were identified as GM3, N-acetylneuraminylgalactosylglucosylceramide and GD3, N-acetylneuraminyl N-acetylneuraminylgalactosylglucosylceramide on the basis of cochromatography with authentic standards, sugar composition analysis, and neuraminidase digestion. GM3, N-acetylneuraminylgalactosylglucosylceramide and GD3, N-acetylneuraminyl N-acetylneuraminylgalactosylglucosylceramide occurred in a ratio of approximately 3 : 2, and the ratio seemed to be rather constant irrelevant of age and sex differences. The neutral glycolipid fraction consisted of GL1a, glucosylceramide (18%), GL1b, galactosylceramide (23%), GL2a, lactosylceramide (27%), GL3, digalactosylglucosylceramide (20%), and GL4, globoside (12%). The major fatty acids of all these glycolipids were 16 : 0, 18 : 0, 22 : 0, 24 : 0 and 24 :1.
Collapse